![]() Insert new gaskets into valve covers and front cover. Clean the valve covers and the front cover. Use a plastic or wooden scrapper to clean away old gasket material. This allows you to clean the pan and oil pump pickup tube of debris if the timing guides were broken.Ĭlean all the gasket mounting surfaces. It should be noted that the correct way to replace the oil pump is to remove the oil pan. Do not use bolts to pull the pump to the block. If it does not, DO NOT force it as those tabs are not aligned. Be sure the pump fits easily all the way against the block.CHECK! Will slide easily up to the block. It just takes a little wiggling and good eye to line up. It has two flats that must align with the two flats on the crankshaft. The pump must be properly aligned to reinstall. The oil pump should slide off easily once you clear the pickup tube. Oil pump only has 3 more bolts to remove. Bending an 8mm wrench at around 50 degrees allows you to access the oil pickup tube bolts with the oil pan still attached. ![]() Some scoring is normal and unavoidable, but look for deep grooves that snag fingernails.Īs mentioned earlier, this would also be the opportune time to replace the oil pump. Special de-torque and torque sequence must be followed for the camshaft bearing caps! All caps must be properly marked and put back into the same orientation and locations as originally installed or engine damage will follow. Rockers should be checked for bearing failure by checking endplay. Debris often gets stuck here and can be the root cause of repeat phaser failure. That oil comes through the block, through the bearing, and into the camshaft. Be aware that the phaser gets oil flow from the center of the camshaft. Specifically, the front camshaft bearing cap should be inspected for debris, scoring, and heat damage. You should remove both camshafts to fully inspect the bearings, caps, and rockers. Sometimes the locating pin slot on the camshaft has become damaged and will require a new camshaft.Ī commonly overlooked problem area that needs to be inspected is the camshaft bearings and caps. Be sure the locating pin is removed with the old phaser. Remove the old phasers if doing a lockout kit or installing new ones. I recommend using Ford OEM replacement parts or perform a phaser lockout. Ford does not sell these components in a kit. Seems like it would be a waste of time to reassemble just to find out you should have replaced something later. 5.4 Replace Timing ChainsĪt this point, it is almost always well worth it to replace all timing components. You should have a look at the lobes on your camshaft and take a peak at the rockers looking for any excessive wear. Check for excessive wear on the chain or the guides. They almost always break when removed from the block. Look for damaged seals on the back-side of the tensioner assembly. Check out my article Spark Plug Replacement of Ford 5.4L 3valve ![]() The 3-valve 5.4L spark plugs are known to break off in the head, and you will need a special tool to remove them. Easy access will be much appreciated with all that room. With all this off the top of the engine, it may be a wonderful time to replace the spark plugs. Mark the one link that is sticking out alone on one side, and mark the two links that are sticking out together on the other side.īy now, the chains should be off and you should have a pile of oily parts and bolts laid out onto your table. Timing marks may be on the chain, if not, lay the chain flat into a straight line. Remove the two bolts on the other guide and remove. Remove the tensioner arm (guide) by sliding it off the pivoting pin.Remove two bolts holding the right front timing chain tensioner in place.It also helps to make sure that once the crankshaft is in the correct position the timing marks on the cams that are in the top of the gear are R for the passenger side of the engine, and L for the driver side of the engine.If chains are to be reused, mark direction of travel. Recheck to make sure the crankshaft is still in the correct position. If replacing phasers, you should loosen the sprocket bolts while the chain is still on. Ford does specify removing certain cam followers, but it isn't required. If engine is currently in-time, rotate the crankshaft so that the keyway is in the 11 to 12 o'clock position.
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